Question

A. A main group element with the valence electron configuration 4s1 is in periodic group ....

A. A main group element with the valence electron configuration 4s1 is in periodic group .
It forms a monatomic ion with a charge of .


B. A main group element with the valence electron configuration 3s23p3 is in periodic group .
It forms a monatomic ion with a charge of .

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